期刊
PARASITOLOGY
卷 121, 期 -, 页码 115-120出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0031182099006277
关键词
Plasmodium falciparum; gametocyte; mosquito; aggregated distribution; malaria transmission
类别
To investigate the quantitative distribution of Plasmodium falciparum gametocytes into the vector bloodmeal, Anopheles arabiensis mosquitoes were fed on 3 volunteers naturally infected with grametocytes. The content of each mosquito midgut was smeared on a microscope slide and Giemsa stained. The distribution of gametocytes ingested by mosquitoes followed a negative binomial distribution, with apparently constant overdispersion (parameter k+/-S.E. = 3.105+/-0.392) fur thr 3 series. This aggregation of gametocytes in some midguts probably facilitates the conjunction of gametes and fertilization. This suggests that P. falciparum gametocytes in the peripheral blood flow of infected man do not follow an independent, homogeneous pattern but show a significant aggregation.
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